resedimentation

resedimentation

[rē‚sed·ə·mən′tā·shən]
(geology)
Sedimentation of material derived from a preexisting sedimentary rock, that is, redeposition of sedimentary material.
Mechanical deposition of material in cavities of postdepositional age, such as the deposition of carbonate muds and silts by internal mechanical erosion or solution of a limestone.
The general process of subaqueous, downslope movement of sediment under the influence of gravity, such as the formation of a turbidity-current deposit.
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References in periodicals archive ?
Thin-shelled bivalves such as Pectinidae from fine quartz sands are generally represented by small fragments, this means resedimentation process in situ or an incipient reworking.
But after Vietnam's communist government opened the economy in 1986 and encouraged rice exports, villagers used their growing wealth to drill private wells, which strained groundwater resources and disrupted a centuries-old system that favored resedimentation.
Resedimentation of the late Holocene White River tephra, Yukon Territory and Alaska.
The resedimentation is common in micropaleontology, mostly because of the small size and weight, permitting horizontal and lateral dispersion, causing necroplanktonic drift, and also the alocthony of the conserved entities.
Volcaniclastic resedimentation in distal fluvial basins induced by large-volume explosive volcanism: The EbisutogeFukuda tephra.
Deposits formed by supraglacial processes are better known, but more complex, because sedimentation occurs on an unstable substrate (ice) and superglacial deposits commonly undergo several episodes of reworking or resedimentation prior to final deposition.
Tectonics is an additional factor to the eustatic and climate influences that increase the likelihood of resedimentation.
In respective studies plant macrofossil data, although with similar limitations, may be more favourable than pollen evidence due to low pollen productivity in lower temperature conditions and possible resedimentation of pollen from earlier time periods.
The remaining homogenate was sedimented at 40,000 x g for 15 min; the resultant pellet was then washed by resuspension (Polytron) in homogenization buffer followed by resedimentation, and was then dispersed with a homogenizer (smooth glass fitted with Teflon pestle) in 50 mM Tris buffer (pH 7.
Sedimentation processes are also intense and are, mainly, the eroded materials resedimentation.
2009) and the WPCP (Callapez, 1998, 2003; Callapez and Ferreira Soares, 2001) do not present signs of taphonomic resedimentation or reelaboration (sensu Fernandez-Lopez, 2000), and the few that show any of these signs do not seem to have suffered notable alterations.